tracing/treewide: Remove second parameter of __assign_str()

With the rework of how the __string() handles dynamic strings where it
saves off the source string in field in the helper structure[1], the
assignment of that value to the trace event field is stored in the helper
value and does not need to be passed in again.

This means that with:

  __string(field, mystring)

Which use to be assigned with __assign_str(field, mystring), no longer
needs the second parameter and it is unused. With this, __assign_str()
will now only get a single parameter.

There's over 700 users of __assign_str() and because coccinelle does not
handle the TRACE_EVENT() macro I ended up using the following sed script:

  git grep -l __assign_str | while read a ; do
      sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file;
      mv /tmp/test-file $a;
  done

I then searched for __assign_str() that did not end with ';' as those
were multi line assignments that the sed script above would fail to catch.

Note, the same updates will need to be done for:

  __assign_str_len()
  __assign_rel_str()
  __assign_rel_str_len()

I tested this with both an allmodconfig and an allyesconfig (build only for both).

[1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/

Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org>	# xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>

8 files changed, 19 insertions, 20 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
index 406ebe17405f..b4b3a43e56a0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
@@ -22,10 +22,10 @@ TRACE_EVENT(mlx5_cmd,
 			    __field(u32, syndrome)
 			    __field(int, err)
 			    ),
-	    TP_fast_assign(__assign_str(command_str, command_str);
+	    TP_fast_assign(__assign_str(command_str);
 			__entry->opcode = opcode;
 			__entry->op_mod = op_mod;
-			__assign_str(status_str, status_str);
+			__assign_str(status_str);
 			__entry->status = status;
 			__entry->syndrome = syndrome;
 			__entry->err = err;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
index f15718db5d0e..78e481b2c015 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
@@ -25,7 +25,7 @@ TRACE_EVENT(mlx5e_rep_neigh_update,
 			struct in6_addr *pin6;
 			__be32 *p32;
 
-			__assign_str(devname, nhe->neigh_dev->name);
+			__assign_str(devname);
 			__entry->neigh_connected = neigh_connected;
 			memcpy(__entry->ha, ha, ETH_ALEN);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
index ac52ef37f38a..4b1ca228012b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
@@ -86,7 +86,7 @@ TRACE_EVENT(mlx5e_tc_update_neigh_used_value,
 			struct in6_addr *pin6;
 			__be32 *p32;
 
-			__assign_str(devname, nhe->neigh_dev->name);
+			__assign_str(devname);
 			__entry->neigh_used = neigh_used;
 
 			p32 = (__be32 *)__entry->v4;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
index 3038be575923..50f8a7630f86 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
@@ -55,12 +55,11 @@ TRACE_EVENT(mlx5_fw,
 	),
 
 	TP_fast_assign(
-		__assign_str(dev_name,
-			     dev_name(tracer->dev->device));
+		__assign_str(dev_name);
 		__entry->trace_timestamp = trace_timestamp;
 		__entry->lost = lost;
 		__entry->event_id = event_id;
-		__assign_str(msg, msg);
+		__assign_str(msg);
 	),
 
 	TP_printk("%s [0x%llx] %d [0x%x] %s",
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
index 458baf0c6415..1ce332f21ebe 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
@@ -17,7 +17,7 @@ TRACE_EVENT(mlx5_esw_vport_qos_destroy,
 			     __field(unsigned short, vport_id)
 			     __field(unsigned int,   tsar_ix)
 			     ),
-	    TP_fast_assign(__assign_str(devname, dev_name(vport->dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->vport_id = vport->vport;
 		    __entry->tsar_ix = vport->qos.esw_tsar_ix;
 	    ),
@@ -36,7 +36,7 @@ DECLARE_EVENT_CLASS(mlx5_esw_vport_qos_template,
 				     __field(unsigned int, max_rate)
 				     __field(void *, group)
 				     ),
-		    TP_fast_assign(__assign_str(devname, dev_name(vport->dev->device));
+		    TP_fast_assign(__assign_str(devname);
 			    __entry->vport_id = vport->vport;
 			    __entry->tsar_ix = vport->qos.esw_tsar_ix;
 			    __entry->bw_share = bw_share;
@@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(mlx5_esw_group_qos_template,
 				     __field(const void *, group)
 				     __field(unsigned int, tsar_ix)
 				     ),
-		    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+		    TP_fast_assign(__assign_str(devname);
 			    __entry->group = group;
 			    __entry->tsar_ix = tsar_ix;
 		    ),
@@ -102,7 +102,7 @@ TRACE_EVENT(mlx5_esw_group_qos_config,
 			     __field(unsigned int, bw_share)
 			     __field(unsigned int, max_rate)
 			     ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->group = group;
 		    __entry->tsar_ix = tsar_ix;
 		    __entry->bw_share = bw_share;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h
index 7f7c9af5deed..0537de86f981 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h
@@ -22,7 +22,7 @@ DECLARE_EVENT_CLASS(mlx5_sf_dev_template,
 				     __field(u16, hw_fn_id)
 				     __field(u32, sfnum)
 		    ),
-		    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+		    TP_fast_assign(__assign_str(devname);
 				   __entry->sfdev = sfdev;
 				   __entry->aux_id = aux_id;
 				   __entry->hw_fn_id = sfdev->fn_id;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
index 8bf1cd90930d..302ce00da5a9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
@@ -24,7 +24,7 @@ TRACE_EVENT(mlx5_sf_add,
 			     __field(u16, hw_fn_id)
 			     __field(u32, sfnum)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->port_index = port_index;
 		    __entry->controller = controller;
 		    __entry->hw_fn_id = hw_fn_id;
@@ -46,7 +46,7 @@ TRACE_EVENT(mlx5_sf_free,
 			     __field(u32, controller)
 			     __field(u16, hw_fn_id)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->port_index = port_index;
 		    __entry->controller = controller;
 		    __entry->hw_fn_id = hw_fn_id;
@@ -67,7 +67,7 @@ TRACE_EVENT(mlx5_sf_hwc_alloc,
 			     __field(u16, hw_fn_id)
 			     __field(u32, sfnum)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->controller = controller;
 		    __entry->hw_fn_id = hw_fn_id;
 		    __entry->sfnum = sfnum;
@@ -84,7 +84,7 @@ TRACE_EVENT(mlx5_sf_hwc_free,
 	    TP_STRUCT__entry(__string(devname, dev_name(dev->device))
 			     __field(u16, hw_fn_id)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->hw_fn_id = hw_fn_id;
 	    ),
 	    TP_printk("(%s) hw_id=0x%x\n", __get_str(devname), __entry->hw_fn_id)
@@ -97,7 +97,7 @@ TRACE_EVENT(mlx5_sf_hwc_deferred_free,
 	    TP_STRUCT__entry(__string(devname, dev_name(dev->device))
 			     __field(u16, hw_fn_id)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->hw_fn_id = hw_fn_id;
 	    ),
 	    TP_printk("(%s) hw_id=0x%x\n", __get_str(devname), __entry->hw_fn_id)
@@ -113,7 +113,7 @@ DECLARE_EVENT_CLASS(mlx5_sf_state_template,
 				     __field(unsigned int, port_index)
 				     __field(u32, controller)
 				     __field(u16, hw_fn_id)),
-		    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+		    TP_fast_assign(__assign_str(devname);
 				   __entry->port_index = port_index;
 				   __entry->controller = controller;
 				   __entry->hw_fn_id = hw_fn_id;
@@ -152,7 +152,7 @@ TRACE_EVENT(mlx5_sf_update_state,
 			     __field(u16, hw_fn_id)
 			     __field(u8, state)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->port_index = port_index;
 		    __entry->controller = controller;
 		    __entry->hw_fn_id = hw_fn_id;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
index fd814a190b8b..6352cb004a18 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
@@ -20,7 +20,7 @@ TRACE_EVENT(mlx5_sf_vhca_event,
 			     __field(u32, sfnum)
 			     __field(u8, vhca_state)
 			    ),
-	    TP_fast_assign(__assign_str(devname, dev_name(dev->device));
+	    TP_fast_assign(__assign_str(devname);
 		    __entry->hw_fn_id = event->function_id;
 		    __entry->sfnum = event->sw_function_id;
 		    __entry->vhca_state = event->new_vhca_state;